This I believe, is the third report to the Northern Nut Growers Association concerning the black walnut contest held in Ohio in 1946. The first report was given soon after the close of the contest. During the year following the contest (1947), I visited each of the ten prize winning trees, photographing them, and getting as complete a case history of each as was possible. This, the third report, concerns mainly the process used to determine the winner of the $50.00 sweepstakes award given in 1951 for the best performance of a black walnut tree for a five-year period. The owners of the ten prize-winning trees in the 1946 contest were asked to report the amount of crop harvested each year as well as to send in samples of the nuts for a cracking test. Complete data were recorded each year from the samples just as they had been for the 1946 contest. The average weight of nut, recovery of kernel at first cracking, total kernel content, and per cent of kernel content were recorded. From these data tables and charts were compiled to make a visual comparison between the various nuts. Walnuts other than the prize winners were not excluded from this five-year competition and quite a few were submitted. However, only one of them, the "Chamberlin" was of special merit and it was given a place on these charts. No samples or crop records were received from the Davidson (sixth prize) and the Jackson (tenth prize) nuts, and so they are not shown on all the charts. One sample from the 1949 crop of Penn walnuts was lost to a pilfering squirrel, and the 1949 data used on the chart for the Penn walnut was therefore the average of all other samples of this variety. The weight of total crop harvested in 1949, however, is actual. Table No. 1 gives the average weight in grams of the sample nuts. The Duke, (first prize) was the largest nut of all, in 1945, averaging just over 27 grams; but the Orth, in 1948, averaged almost a gram more. The Kuhn, which was the smallest of the eight nuts in 1946 and again in 1950, was the largest nut in 1949, and its size in 1949 was exceeded only four times by any of the other nuts during the contest. The nuts were large in size during the off year when only a small crop was produced and they were small when there was a heavy crop. In table No. 2 the weight in grams of the kernel recovered on first crack, secured without the aid of nut pick, is recorded. In this comparison the Duke, because of large size, might be expected to be an easy winner and it was in 1946 and in 1950; but in 1948, though second in average weight of nut for that year, it was in fifth place in recovery of kernel at first cracking. Table No. 3 records the average weight in grams of the kernels. Here the Duke, due largely to its size, is a consistent winner in all three years it produced nuts. However, in 1949, a small crop year for the Kuhn, the nuts of this variety were large and contained more kernel than the Duke did in 1948 or in 1950.